Reliable performance: Made from copper material, this safety valve delivers dependable functionality and longevity, making it a trusted accessory for air conditioning maintenance. Wide compatibility: Blue valve fits 1/4 SAE interface and is compatible with R22, R404, and R407s systems, offering versatility across various air conditioning setups. Optimized cooling efficiency: The valve enables efficient flow, which helps maintain strong cooling performance in your air conditioning units. Userfriendly design: Distinct coding makes the valve easy to identify and operate, streamlining maintenance tasks. Key specifications Material: Copper Interface: 1/4 SAE Compatibility: R22, R404, R407s (R407s) Color: Blue Use scenarios Residential air conditioning service: Connect to 1/4 SAE ports on systems using R22, R404, or R407s to perform charging, testing, or routine maintenance with reliable flow control. Commercial HVAC maintenance: Use in field service for various 1/4 SAE port systems to ensure safe and efficient refrigerant handling and system cooling. Onsite diagnostics and quick checks: Utilize the clearly coded valve to quickly identify the correct port and perform rapid assessments without confusion, reducing service time.